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or have them both on an "essential" bus which is powered from both bus 1 and bus 2
----- Original Message ----- From: "Dan Ballin" <dballin@gmail.com>
To: <lml@lancaironline.net>
Sent: Thursday, March 11, 2010 1:21 PM
Subject: [LML] Audio panel and com failure mode
I've posted this on the Aeroelectric web site, but figured some of you
have a similar setup and might be interested in a failure mode that I
didn't think of when I setup my panel. I have a PMA 8000b audio
panel and an SL30 as com 1 and SL40 as com 2. I have a dual alt/dual
battery (z-14) system that are separate and can be connected with a
cross tie. When no power is applied to the audio panel, it defaults
to com 1 and com 2 is not usable. So if you wire both the audio panel
and com 1 on the same bus (like I did), then failure of that buss
leaves you without any ability to transmit or receive. Com 2 is not
available. The solution is to just hit the cross tie, but really the
better way is to wire the audio panel and com 1 on separate busses.
Dan Ballin
LEG #286
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